Solvent extraction of VDC from I-141b
US5095158A · kind A · utility
4Cited by
1References
2Claims
0Family size
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Key dates
| Filing date | May 10, 1991 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | May 10, 2011 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C17/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Partial or total separation of a mixture of vinylidene chloride and 1,1-dichloro-1-fluoroethane by liquid-liquid extraction with solvents having a Hansen solubility parameter of about 30.8-32.0, such as ethanolamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.